Mr Jatuporn made the comments following a clash on Tuesday when police used force to retake a rally site at Pan Fah Bridge from protesters.
Mr Jatuporn said the clash was unavoidable because protesters were violating the emergency decree.
He insisted that the CMPO was being too lenient on ending demonstrations, despite the fact that the number of protesters had considerably decreased.
The clash on Tuesday morning was very small compared to the crackdowns on protesters in 2010 when a large number of red-shirts were killed and injured, he said.
According to Mr Jatuporn, the People's Democratic Reform Committee (PDRC) is stuck because its proposals - be it a people's revolution, the appointment of neutral prime minister or the creation of a people's council - are not backed by the constitution and therefore impossible to achieve.
Mr Suthep is trying to prolong the protests, albeit with a smaller number of protesters, in the hope that an independent organisation will come out and take action against the government.
The only way of ending the protest situation is for Mr Chalerm, as CMPO head, to apprehend Mr Suthep, Mr Jatuporn said.